A Facebook pixel is a small piece of JavaScript code that an advertiser places on every page of their website. This piece of code provides a set of lightweight functionalities for sending user-specific events and event-specific custom data to Facebook. Advertisers can use the Facebook pixel to capture intent information about how people are using their website. A single Facebook pixel is added to all pages of a website, and is then used to create website custom audiences
{
"error": {
"message": "More than one pixel exist for this account",
"type": "OAuthException",
"code": 6202,
"error_subcode": 1784012,
"is_transient": false,
"error_user_title": "Too many pixels in ad account",
"error_user_msg": "We found more than 1 ads pixels in ad account 23850279712480684, and cannot decide which one to use.Please specify the ads pixel ID that you would like to use.",
"fbtrace_id": "AEfFiSfcyPEbpoAz_KML7fK"
}
}